Comment 23 for bug 483443

(In reply to comment #20)
> This is a straight port of nsIGnomeVFSService, good so far.
> Last time I skimmed through the code, it looked quite feasible to get rid of
> the XPCOM-style interface completely, rather using the gio functions directly
> instead of wrapping them with an interface/class.

This is not a so good idea, especially for people that don't care about gnome and don't want anything related to gnome on their computer (think KDE users, for example). At least, it was true for gnomevfs. I guess it'd be the same with GIO. Keeping it as a XPCOM component allows it to be loaded when gnome libraries are there and not be loaded otherwise.

(In reply to comment #22)
> Created an attachment (id=383890) [details]
> Replace GnomeVFSService by GIOService in rest of the source code
>
> This patch replaces nsGnomeVfsService class by nsGIOService in Mozilla source
> code.

Depending on how Mozilla wants to keep backwards compatibility, it might be worth keeping the GnomeVFS layer.